北江千吨级航道整治研究:Ⅱ二维数学模型与整治河段通航水流条件分析  

Study on the Beijiang River 1 000t waterway regulation: Ⅱ two-dimensional numerical model development and study on the navigation flow conditions in the regulation river

作　　者：杨明远 杨武[2] 郁达 余锦杰 蒋昌波[2,3] 陈杰[2,3] 

机构地区：[1]广东省航道局,广东广州510000 [2]长沙理工大学水利工程学院,湖南长沙410004 [3]水沙科学与水灾害防治湖南省重点实验室,湖南长沙410004

出　　处：《交通科学与工程》2013年第4期66-72,共7页Journal of Transport Science and Engineering

基　　金：国家自然科学基金重点项目(51239001);高等学校博士学科点专项科研基金新教师类资助课题(20124316120003);广东省交通运输厅科技项目计划重大项目(2012-01-002)

摘　　要：基于有限体积方法,建立平面二维水流数学模型,对北江白石窑枢纽坝下19km航道整治工程进行数值研究.运用实测水文资料对模型进行验证.验证结果表明:该模型精度符合规范要求.计算了整治工程实施前、后白石窑坝下游河段通航水流特性,分析了各级恒定流和非恒定流作用下整治工程对坝下游河段通航水流条件的影响.研究结果表明:实施整治工程后,整治河段水流条件得到了明显的改善,水流条件可以满足千吨级船舶的通航要求.Based on the FVM method,a mathematical model for two-dimensiona[ t[ow was established. Model validation results showed that the calculated values agree well with the measured values. The model was reasonable and reliable, and was utilized to analyze the flow characteristics before and after the completion of project under. The Baishiyao complex＇ downsteam waterway regulation in Beijiang River. The navigable flow condition of the Baishiyao complex＇ downstream waterway under steady flow and unsteady flow were analyzed. The results showed navigable flow condition had marked- ly improved after the waterway renovation project implementation, and the flow condi- tions fulfilled the requirements of thousand tons ship＇s navigation.

关 键 词：二维水流数学模型 有限体积法 航道整治 北江 

分 类 号：TV139.2[水利工程—水力学及河流动力学]